html - How can I move my navigation bar to a different place? -

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i'm trying make nav bar horizontal , centered. right now, it's smushed right of website. how control bar located?
also, why can't have css under #nav (why need #nav ul li, etc?)

#nav{      width: 90%;      text-align: center;      font-size: 35px;      text-align: center;  }    #nav ul li{      display: inline;      height: 60px;      text-align: center;  }    #nav ul li a{      padding: 40px;      background: #25ccc7;      color: white;        	      text-align: center;  }
<div id="nav">      <ul>          <li><a href="/">home</a></li>          <li><a href="/about">about</a></li>          <li><a href="/contact">contact</a></li>      </ul>  </div>

you need different css selectors because not styles meant applied surrounding container #nav, elements inside it. pure css, not possible nest rules. if nesting asking for, take @ less or sass (duckduckgo friend).

your list items pushed little right because natural behaviour of list items unless overwrite responsible css attributes margin , / or padding (depending on browser). reset both 0 in css list items.

#nav {    background-color: #e8e8e8;    width: 90%;    font-size: 35px;    text-align: center;    margin: 0 auto;  }  #nav ul {    display: inline-block;    white-space: nowrap;    margin: 0;    padding: 0;  }  #nav ul li {    display: inline;    text-align: center;    margin: 0;    padding: 0;  }  #nav ul li {    padding: 40px;    background: #25ccc7;    color: white;    text-align: center;  }
<div id="nav">    <ul>      <li><a href="/">home</a></li>      <li><a href="/about">about</a></li>      <li><a href="/contact">contact</a></li>    </ul>  </div>


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